LMC6772

LMC6772 Dual Micropower Rail-To-Rail Input CMOS Comparator with Open Drain Output September 1995 LMC6772 Dual Micropower Rail-To-Rail Input CMOS Comparator with Open Drain Output General Description The LMC6772 is an ultra low power dual comparator with a maximum 10 µA/comparator power supply current. It is designed to operate over a wide range of supply voltages, with a minimum supply voltage of 2.7V. The common mode voltage range of the LMC6772 exceeds both the positive and negative supply rails, a significant advantage in single supply applications. The open drain output of the LMC6772 allows for wired-OR configurations. The open drain output also offers the advantage of allowing the output to be pulled to any voltage rail up to 15V, regardless of the supply voltage of the LMC6772. The LMC6772 is targeted for systems where low power consumption is the critical parameter. Guaranteed operation at supply voltages of 2.7V and rail-to-rail performance makes this comparator ideal for battery-powered applications. Refer to the LMC6762 datasheet for a push-pull output stage version of this device. Features (Typical unless otherwise noted) n Low power consumption (max): IS = 10 µA/comp n Wide range of supply voltages: 2.7V to 15V n Rail-to-Rail Input Common Mode Voltage Range n Open drain output n Short circuit protection: 40 mA n Propagation delay ( @VS = 5V, 100 mV overdrive): 5 µs Applications n n n n n n n Laptop computers Mobile phones Metering systems Hand-held electronic...